id	domain	url
ideas-6822	doi.org	https://doi.org/10.5430/wjel.v13n3p193
ideas-6822	doi.org	https://doi.org/10.4135/9781526466037
ideas-6822	doi.org	https://doi.org/10.28945/403
ideas-6822	doi.org	https://doi.org/10.26443/el.v27i1.196